install TICK component

gistfile1.txt

cat <<EOF | sudo tee /etc/yum.repos.d/influxdb.repo
[influxdb]
name = InfluxDB Repository - RHEL \$releasever
baseurl = https://repos.influxdata.com/rhel/\$releasever/\$basearch/stable
enabled = 1
gpgcheck = 1
gpgkey = https://repos.influxdata.com/influxdb.key
EOF

2) sudo yum makecache

3) sudo yum -y install influxdb vim curl

4) sudo systemctl start influxdb && sudo systemctl enable influxdb

5)
sudo firewall-cmd --add-port=8086/tcp --permanent
sudo firewall-cmd --reload

6)
$ sudo vim /etc/influxdb/influxdb.conf
[http]
auth-enabled = true

curl -XPOST "http://localhost:8086/query" --data-urlencode \
"q=CREATE USER login WITH PASSWORD 'PASS' WITH ALL PRIVILEGES"

login:pass

Installing Grafana on CentOS 7
1)
cat <<EOF | sudo tee /etc/yum.repos.d/grafana.repo
[grafana]
name=grafana
baseurl=https://packages.grafana.com/oss/rpm
repo_gpgcheck=1
enabled=1
gpgcheck=1
gpgkey=https://packages.grafana.com/gpg.key
sslverify=1
sslcacert=/etc/pki/tls/certs/ca-bundle.crt
EOF

2)sudo yum -y install grafana

3)
sudo systemctl start grafana-server
sudo systemctl enable grafana-server
4)
sudo firewall-cmd --add-port=3000/tcp --permanent
sudo firewall-cmd --reload

/etc/telegraf/telegraf.conf

 [[outputs.influxdb]]
      ## The full HTTP or UDP endpoint URL for your InfluxDB instance.
      ## Multiple urls can be specified as part of the same cluster,
      ## this means that only ONE of the urls will be written to each interval.
      # urls = ["udp://localhost:8089"] # UDP endpoint example
      urls = ["http://localhost:8086"] # required
      ## The target database for metrics (telegraf will create it if not exists).
      database = "telegraf" # required

      ...

      ## Write timeout (for the InfluxDB client), formatted as a string.
      ## If not provided, will default to 5s. 0s means no timeout (not recommended).
      timeout = "5s"
      username = "LOGIN"
      password = "PASS"
 
 

/etc/telegraf/telegraf.d/vsphere-stats.conf

## Realtime instance
[[inputs.vsphere]]
## List of vCenter URLs to be monitored. These three lines must be uncommented
## and edited for the plugin to work.
interval = "60s"
  vcenters = [ "https://192.168.1.128/sdk" ]
  username = "LOGIN"
  password = "PASS"

vm_metric_include = []
host_metric_include = []
cluster_metric_include = []
datastore_metric_exclude = ["*"]

max_query_metrics = 256
timeout = "60s"
insecure_skip_verify = true

## Historical instance
[[inputs.vsphere]]
interval = "300s"
  vcenters = [ "https://192.168.1.128/sdk" ]
  username = "LOGIN"
  password = "PASS"

  datastore_metric_include = [ "disk.capacity.latest", "disk.used.latest", "disk.provisioned.latest" ]
  insecure_skip_verify = true
  force_discover_on_init = true
  host_metric_exclude = ["*"] # Exclude realtime metrics
  vm_metric_exclude = ["*"] # Exclude realtime metrics

  max_query_metrics = 256
  collect_concurrency = 3